MIPS: Microoptimize arch_{read,write}_lock (756cca61) · Commits · e / devices / android_kernel_teracube_2e

arch/mips/include/asm/spinlock.h

+11 −11

Original line number	Diff line number	Diff line
		@@ -245,16 +245,16 @@ static inline void arch_read_lock(arch_rwlock_t *rw)
		__asm__ __volatile__(
		" .set noreorder # arch_read_lock \n"
		"1: ll %1, %2 \n"
		" bltz %1, 2f \n"
		" bltz %1, 3f \n"
		" addu %1, 1 \n"
		" sc %1, %0 \n"
		"2: sc %1, %0 \n"
		" beqz %1, 1b \n"
		" nop \n"
		" .subsection 2 \n"
		"2: ll %1, %2 \n"
		" bltz %1, 2b \n"
		"3: ll %1, %2 \n"
		" bltz %1, 3b \n"
		" addu %1, 1 \n"
		" b 1b \n"
		" b 2b \n"
		" nop \n"
		" .previous \n"
		" .set reorder \n"
		@@ -324,16 +324,16 @@ static inline void arch_write_lock(arch_rwlock_t *rw)
		__asm__ __volatile__(
		" .set noreorder # arch_write_lock \n"
		"1: ll %1, %2 \n"
		" bnez %1, 2f \n"
		" bnez %1, 3f \n"
		" lui %1, 0x8000 \n"
		" sc %1, %0 \n"
		" beqz %1, 2f \n"
		"2: sc %1, %0 \n"
		" beqz %1, 3f \n"
		" nop \n"
		" .subsection 2 \n"
		"2: ll %1, %2 \n"
		" bnez %1, 2b \n"
		"3: ll %1, %2 \n"
		" bnez %1, 3b \n"
		" lui %1, 0x8000 \n"
		" b 1b \n"
		" b 2b \n"
		" nop \n"
		" .previous \n"
		" .set reorder \n"